Lock-nut.



100.000,404. A y PATENTBD 000.5,1005

LOCKNUT.

APPLIOATION FILED 00T.12,1903.

UNITED STATES r- PATENT oFFIoE. I,HENRY G. LLFBORG, F CHICAGO, ILLINOIS.`

' LOCK-NUT.r

To all whom it may concern,.-

. Beit known that I, HENRY G. ELFBORG, a citizen of the United States, residing at Chicago, in the county of Cook-and State of Illinois,have invented certain4 newand useful Improvements in Lock-Nuts, of which the following is a specification.

The invention relates to that class of mechanisms which are designed to hold a threaded nut in engagement with a threaded bolt and prevent independentrotation of the partsinv other words, to lock the parts against independent rotations, as Will more fully hereinafter appear.

The principal object of the invention is to provide a simple, economical, and efficient nut-lock that will prevent independent rotations ofva threaded nut and bolt.-

anism as it appears when in engagement therewith; Fi 2, a longitudinal -sectional detail taken on ine 2 of Fig. 1 looking in thev direction of the arrow; Fig. 3, a perspective view of the retainer removed nfrom engagement with the nut and bolt, and Fig. 4 a perspective view of a modified form of retainer.l

In the art to which this invention relates it is Well known that it has long been desired to get a satisfactory, simple, and economical locking mechanism that will prevent independent rotations of a'v nut and bolt, or, in

' bolt.

other words, prevent the unlocking of the,l same after they have been tightened in position. To this end this invention is principally designed, as will more fully hereinafter ap ear.

n illustrating and describing my improvements I have illustrated and described them in connection with a railway-rail and fishplates as showing one type of a short-headed It will be understood, however, that it may be used in a great many different ways and for a variety of purposes,l all of which Will lbe understood and appreciated by those skilled in the art.

.In constructinglock-nut mechanisms in accordance with these im rovements I make a bolt portion a, preferab y provided with a Patented Dec. 5, 1905.

head portion b and having one end threaded,

as atc. The threaded end of the bolt is also perforated, as will more fully hereinafter appear. This bolt, as shown in Fig. 1, is passed through the perforated fish-plates d and e and the rail-web f. To secure the parts together and prevent release of the same except when desired, a threaded nut portion g is provided and .placed in threaded engagement with the threaded end of the bolt, so as to firmly lclamp the parts above described together. l

` To prevent independent rotation of the parts-ft'. e., the-bolt and nut-in other words, to prevent unlocking of the same except when desired, a flanged-metallic retainer or lock portion is provided and preferably made, as shown in Figs. 3 and 4, in a U-shaped channel portion having forwardly-extending retainer-flanges h and, as shown in Fig. 3, rearwardly-extending flanges i, bearing the perforations y'. The retaining flanged portions are of a depth at least equal to and preferably deeper than the thickness ofthe polygonal nut, so as to permit adjustment of nut and bolt-that, is, the nut may be turned backward or forward to any desired position on the bolt without disturbing the final relation of the flanged retainer and the bolt. A locking-pin 7c lis provided and passed through the perforations vin the retainer and threaded bolt. This pin, as shown in Fig. 1, is preferably made in the shape of a s lit pin, one end of which may be looped and t e other end divided, so as to be turned, as is usual in cases of such pins, to prevent ordinary displacement.

In Fig. 4, as hereinabove stated, the flangedretainer is made considerably deeper than in Fig. 3, so that the-perforations Z maybe made through the inner portions of theretainingwalls instead of Abeing independent rear- Wardly-eXtending flanges, as shown in connection with Figs. 2 and 3.

I claim-- "1. In lock -nut mechanism, the combina- IOO tion of a erforated threaded bolt, a threaded i polygona nut mounted in threaded enga ement therewith, a retainer in non-rotatale IIO engagement with the nut and formed of a single piece of metal having a web portion perforated to receive the bolt and integral bent flanges extending at an angle to such perforated web portion from its outer edges provided with perforations therethrough for receiving the looking-pin, and a locking-pin passed through such perforations in the retainer-flanges and bolt, substantiallyT as described,

2. In lock nut mechanism, the combination of a perforated threaded bolt, a threaded polygonal nut in engagement therewith, a retainer having a central web portion perforated to receive the bolt, integral flanges extending forwardly from such web portion in engagement with the nut and integral perforated flanges struck up from the central web portion extending rearwardly therefrom all formed of one piece of sheet metal bent to form such flanges, and pin mechanism passed through the perforated flanges of the retainer and through the perforation in the threaded bolt to prevent independent rotation of the parts, substantially as described.

3. ln lock-nut mechanism, the combination of a perforated threaded bolt, a threaded polygonal nut in engagement therewith, a retainer having a centrally-perforated web portion and integral perforated rear lugs struck up from the central web portion and extending at an angle thereto and forward lugs engaging the polygonal nut, and a locking-pin passed through the perforations in the retainer and bolt, substantially as described.

4. In a lock-nut mechanism, a retainer formed of a single piece of metal having a web portion perforated to receive a bolt, integral bent flanges extending at an angle to such perforated web portion from opposite outer edges thereof provided with perforations for receiving a locking-pin, integral flanges extending from opposite edges of the perforated centralweb portion in the opposite direction from the perforated flanges and at an angle to such perforated flanges and central web portion, for engaging the nut to be secured thereby, substantially as described.

5. In a lock-nut mechanism, a retainer formed of a single piece of metal having a web portion perforated to receive a bolt, integral bent flanges extending at an angle to such perforated web portion from opposite outer edges thereof provided with perforations for receiving a looking-pin, integral flanges extending from opposite edges of the perforated central web portion in the opposite direction from the perforated flan ges and at an angle to such central web portion, f or engaging the nut to be secured thereby, and a loekingpin extending through such perforated flanges adapted to engage the bolt, substantially as described.

6. ln a lock-nut mechanism, the combina.- tion of a perforated threaded bolt, a nut mounted in threaded engagement therewith, a retainer mounted in non-rotatable engagement with the nut and formed of a single piece of metal having a web portion perforated to receive the bolt, integral flanges extending at an angle to such perforated web portion from opposite outer edges thereof in one direction, integral flanges extending from the perforated central vweb portion in an opposite direction and in engagenunt with the nut, and a locking-pin extending through the perforated flanges and in engagement with the perforated bolt, substantially as described.

7. In a lock-nut mechanism, a retainer formed of a single piece of sheet ineial having a perforated web portion, integral lugs struck up from such web portion extending at an angle thereto and provided with perforations for receiving a securing-pin, and flanges extending from opposite edges of such web portion adapted to engage the nut to be secured thereby, substantially as described.

HENRY G. ELFBOR G. litnesses THOMAS F. SHERJDAN, HARRY I. CROMER. 

